HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1752

PERIOD COVERED:  0000Z (UTC) 11/01/96 - 0000Z (UTC) 11/04/96

Daily Status Report as of 309/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   The following scheduled proposals did not execute due to the on-going =
safemode event:

   1.1 Seven Sets of WF/PC-2 6253 (Pure Parallel 
       Archive Program)
   1.2 GHRS/1 6445 (A Hyades Enigma: 71 Tauri)
   1.3 WF/PC-2 5999 (The Nuclear Structure of S0 
       Galaxies: A PC Imaging Survey)
   1.4 FOS/BL 6471 (A Bolometric Light Curve For 
       Pulsating Helium Star LSS3184)
   1.5 Two Sets of WF/PC-2 6802 (Cosmology With the 
       Medium Deep Survey)
   1.6 Two Sets of WF/PC-2 6346 (Snapshot Survey of the 
       Ultraluminous IRAS Galaxy Sample-Part 1 High)
   1.7 COSTAR/U 6895 (FOC Cycle 6 PSF Monitoring)
   1.8 WF/PC-2 6344 (Low - Mass Binaries in the 
       Hyades - Completing the Survey)
   1.9 GHRS/1 6499 (The Relationship Between Lyman-Alpha 
       Clouds and Galaxies at z < 0.3)
   1.10 GHRS/1 7208 (Spectroscopic Imaging of the Jovian 
       Aurora)
   1.11 GHRS/2 6530 (The Wind Momentum: Luminosity 
       Relationship for LMC A and B Supergiants)
   1.12 FOS/RD 6577 (An Expanded Survey for Study 
       of the Lyman-Alpha Line and QSO Mg II Absorption)
   1.13 GHRS/1/2 6415 (Thermal Pressures of the Local
       Interstellar Medium)
   1.14 GHRS/1 6457 (The Abundance of Interstellar 
       Nitrogen)
   1.15 Three Sets of WF/PC-2 5831 (Temporal 
       Evolution of Neptune's Vertical Aerosol Structure)
   1.16 FOS/BL 6682 (Geometry and Generalizability of 
       the Reflected Light Model for Seyfert Galaxies)
   1.17 WF/PC-2 6909 (WF/PC-2 Cycle 6 Calibration: 
       Earth Flats)
   1.18 Two Sets of WF/PC-2 6361 (High Resolution 
       Imaging of X-Ray Selected AGNs)
   1.19 GHRS/2 6456 (The Photospheric Iron 
       Abundance of the UV Bright Stars in a Globular 
       Cluster)
   1.20 WF/PC-2 6346 (Snapshot Survey of the 
       Ultraluminous IRAS Galaxy Sample-Part 1 High)
   1.21 GHRS/1/2 6594 (White Dwarf Companions of 
       Barium and CH Peculiar Stars)

2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 2
                                        Successful : 0

       (See HSTAR 5783) there was a failed Guide Star Acquisition and =
reacquisition after the first HST slew at 309/0212Z. 

                          Scheduled Reacquisitions : 2
                                        Successful : 0

   2.2 FHST Updates: 

                              Scheduled : 9
                             Successful : 0

   2.3 Operations Notes: 

       A test was conducted on Saturday, 307/19:02 GMT to power on =
reaction wheel (RWA) #1 and determine its status.  The test consisted of =
open loop torque commanding to the RWA in each direction.  The reaction =
wheel responded properly to both torque commands.  The test was repeated =
successfully.  A third macro was executed at 22:17 which reversed the =
order of the torque commands.  The RWA responded properly to this =
sequence as well.  At 23:25, RWA 1 was brought back into the control =
system as part of the normal four RWA configuration.  

       Science (SMS SA309G00) was resumed at 309/00:00 GMT.  Because the =
science SMS was generated assuming a three RWA configuration, the flight =
software maneuver sizing parameters were configured for a three wheel =
system to be consistent with the SMS.  Unfortunately, these three RWA =
sizing parameters, which were developed before launch, are in error and =
resulted in slew undersizing by approximately 1-2%.  The plan to resolve =
this problem is to command HST to inertial hold safemode this morning, =
uplink the four RWA sizing parameters, and generate a science SMS which =
uses four RWAs.

       At 309/06:40 the NSSC-I issued an error message during GHRS =
transition from low to high voltage.  The error indicates an attempt to =
execute an RTCS while another is executing.  Real-time commanding was =
done to halt the offending RTCSs and at 13:30 the GHRS successfully =
transitioned to high voltage.  The problem is under investigation.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

   The JIS#6 (EVA#3) Simulation is scheduled for tomorrow (Tuesday, Nov. =
05, 1996) from 10am until 830pm.

/DMH